Yes, I've seen the same trend and it drives me nuts. It doesn't drive me nuts because it is occurring on SteemIt that is fine and that is their choice. However, It seems to show up on my post all the time. Not so much vote, because it isn't worth much, but for follows. The whole idea you follow me and I'll follow you.
I just find it very annoying, if you want to follow me then do so. If I want to follow you I will. If I don't then I won't. For the most part, I think this sort of thing won't really make you successful here. I mean I guess I could be wrong. But it just isn't for me!
RE: Why I won't vote for you if you offer me something in return